This paper deals with the comparison of two tool steels M390 and M398 produced by powder metallurgy MICROCLEAN type. The primary use steel is in plastics industry to produce screws for injection moulding machines. main purpose analyze hardness after different stages heat treatment. first part article evaluates hardening, which was performed using a hardening dilatometer DIL805A. A total 8 contr...

This paper presents an overview of the DMT and of its design applications, in the light of the experience accumulated over the last 20 years. The following applications are discussed: determining common soil parameters, predicting settlements of shallow foundations, compaction control, detecting slip surfaces in clay slopes, predicting the behavior of laterally loaded piles, evaluating sand liq...

A descript ion is give n of apparatus employing a ce ll that is both a bellows dilatometer and a threeterminal elec t rode se t for measuring simu ltaneous ly the d e nsity and diel ec tri c properties of liquids as func tions of temperature and pressure . Measurement s are possible at temperatures from .1 20 oK to over 300 oK and pressures from 1 to 2000 atm with an uncertainty of 0.03 percent...